14th United States Congress
House of Representatives

District
Vacator
Reason for change
Successor
Date of successor's formal installation
New York 12
Vacant
Member-elect Benjamin Pond died during previous congress
Asa Adgate (DR)
December 7, 1815
Pennsylvania 3
Vacant
Amos Ellmaker resigned on July 3, 1815, upon State appointment as judge
James M. Wallace (DR)
December 4, 1815
Kentucky 2
Vacant
Seat declared vacant by the governor, “caused by the acceptance of Henry Clay to sign a commercial convention as Minister Plenipotentiary to Great Britain”, but Clay was elected to fill his own vacancy
Henry Clay (DR)
December 4, 1815
New York 17
William S. Smith
Credentials for Smith were issued by the Secretary of State of New York, but Smith did not take or claim the seat, contested by Willoughby, Jr.
Westel Willoughby, Jr. (DR)
December 13, 1815
New York 8
John Adams
Credentials for Adams were issued by the Secretary of State of New York, but Adams did not take or claim the seat, contested by Root
Erastus Root (DR)
December 26, 1815
Maryland 5
Nicholas R. Moore (DR)
Resigned sometime in 1815 before Congress convened
Samuel Smith (DR)
February 4, 1816
New York 6
Jonathan Fisk (DR)
Resigned sometime in March, 1815, upon appointment as United States Attorney for the Southern District of New York
James W. Wilkin (DR)
December 4, 1815
Pennsylvania 9
David Bard (DR)
Died March 12, 1815
Thomas Burnside (DR)
December 11, 1815
Pennsylvania 1
Jonathan Williams (DR)
Died May 16, 1815
John Sergeant (F)
December 6, 1815
Virginia 15
Matthew Clay (DR)
Died May 27, 1815
John Kerr (DR)
December 5, 1815
Tennessee 2
John Sevier (DR)
Died September 24, 1815
William G. Blount (DR)
January 8, 1816
North Carolina 6
Nathaniel Macon (DR)
Resigned December 13, 1815, after being elected to the U.S. Senate
Weldon N. Edwards (DR)
February 7, 1816
Maryland 3
Alexander C. Hanson (F)
Resigned sometime in 1816
George Peter (F)
October 7, 1816
Ohio 1
John McLean (DR)
Resigned sometime in 1816
William Henry Harrison (DR)
December 2, 1816
New York 21
Peter B. Porter (DR)
Resigned January 23, 1816
Archibald S. Clarke (DR)
December 2, 1816
Massachusetts 11
Elijah Brigham (F)
Died February 22, 1816
Benjamin Adams (F)
Seated December 2, 1816
Pennsylvania 9
Thomas Burnside (DR)
Resigned April, 1816
William P. Maclay (DR)
December 3, 1816
North Carolina 8
Richard Stanford (DR)
Died April 9, 1816
Samuel Dickens (DR)
Seated December 2, 1816
Maryland 5
William Pinkney (DR)
Resigned April 18, 1816, upon appointment as Minister Plenipotentiary to Russia
Peter Little (DR)
December 2, 1816
Vermont at-large
Daniel Chipman (F)
Resigned May 5, 1816
Vacant until next Congress
Vacant until next Congress
New York 20
Enos T. Throop (DR)
Resigned June 4, 1816
Daniel Avery (DR)
December 3, 1816
Virginia 18
Thomas Gholson, Jr. (DR)
Died July 4, 1816
Thomas M. Nelson (DR)
December 4, 1816
Kentucky 1
James Clark (DR)
Resigned sometime in August, 1816
Thomas Fletcher (DR)
December 2, 1816
Missouri Territory at-large
Rufus Easton
Served throughout the first session; Scott presented credentials at the beginning of the second session and was contested by Easton
John Scott
December 2, 1816
Illinois Territory at-large
Benjamin Stephenson
Term ended September 3, 1816
Nathaniel Pope
December 2, 1816
Virginia 23
John Clopton (DR)
Died September 11, 1816
John Tyler (DR)
December 17, 1816
South Carolina 9
William Mayrant (DR)
Resigned October 21, 1816
Stephen D. Miller (DR)
January 2, 1817
North Carolina 5
William R. King (DR)
Resigned November 4, 1816
Charles Hooks (DR)
December 2, 1816
Georgia at-large
Alfred Cuthbert (DR)
Resigned November 9, 1816
Zadock Cook (DR)
January 23, 1817
Indiana Territory at-large
Jonathan Jennings (Territorial delegate)
Indiana was admitted to the Union on December 11, 1816
William Hendricks (DR)
December 11, 1816
Indiana at-large
Jonathan Jennings (Territorial delegate)
Indiana was admitted to the Union on December 11, 1816
William Hendricks (DR)
December 11, 1816
Missouri Territory at-large
John Scott
His election was contested by his predecessor Easton. On January 13, 1817, the election was declared illegal, but the seat was declared vacant.
Vacant until next Congress
Vacant until next Congress

Question: Which people served as representative of the Pennsylvania 9 district during which dates?
Answer: David Bard (DR) served as representative until March 12, 1815, and was replaced by Thomas Burnside (DR) from December 11, 1815, until April, 1816 and later by William P. Maclay (DR), starting December 3, 1816.